Battery pack



FIG. 1 is a front view of a battery pack in accordance with my inventionthereof;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top end view thereof; and,

FIG. 6 is a bottom end view thereof.

The ornamental design for battery pack, as shown and described.